# CVE-2026-119972: Remote Procedure Call Denial of Service Vulnerability

Status: published. Published: 2026-11-10. Updated: 2026-11-10.

Uncontrolled resource consumption in Windows Remote Procedure Call allows an unauthorized attacker to deny service over a network.

## Remediation

- fix: The reporting source identifies this reference as a patch. Check the advisory for affected versions and supported release branches. (source: CNA: microsoft) — https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119972

## Affected products and versions

- Microsoft / Windows 10 Version 1607: ≥ 10.0.14393.0; < 10.0.14393.9688 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, x64-based Systems
- Microsoft / Windows 10 Version 1809: ≥ 10.0.17763.0; < 10.0.17763.9487 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, x64-based Systems
- Microsoft / Windows 10 Version 21H2: ≥ 10.0.19044.0; < 10.0.19044.7846 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, ARM64-based Systems, x64-based Systems
- Microsoft / Windows 10 Version 22H2: ≥ 10.0.19045.0; < 10.0.19045.7846 (affected, custom). Source: CNA: microsoft; platforms: 32-bit Systems, ARM64-based Systems, x64-based Systems
- Microsoft / Windows 11 version 23H2: ≥ 10.0.22631.0; < 10.0.22631.7711 (affected, custom). Source: CNA: microsoft; platforms: ARM64-based Systems
- Microsoft / Windows 11 Version 23H2: ≥ 10.0.22631.0; < 10.0.22631.7711 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows 11 Version 24H2: ≥ 10.0.26100.0; < 10.0.26100.9974 (affected, custom). Source: CNA: microsoft; platforms: ARM64-based Systems, x64-based Systems
- Microsoft / Windows 11 Version 25H2: ≥ 10.0.26200.0; < 10.0.26200.9974 (affected, custom). Source: CNA: microsoft; platforms: ARM64-based Systems, x64-based Systems
- Microsoft / Windows 11 version 26H1: ≥ 10.0.28000.0; < 10.0.28000.3501 (affected, custom). Source: CNA: microsoft; platforms: ARM64-based Systems, x64-based Systems
- Microsoft / Windows 11 Version 26H2: ≥ 10.0.26300.0; < 10.0.26300.9974 (affected, custom). Source: CNA: microsoft; platforms: ARM64-based Systems, x64-based Systems
- Microsoft / Windows Server 2016: ≥ 10.0.14393.0; < 10.0.14393.9688 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2016 (Server Core installation): ≥ 10.0.14393.0; < 10.0.14393.9688 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2019: ≥ 10.0.17763.0; < 10.0.17763.9487 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2019 (Server Core installation): ≥ 10.0.17763.0; < 10.0.17763.9487 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2022: ≥ 10.0.20348.0; < 10.0.20348.5870 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2025: ≥ 10.0.26100.0; < 10.0.26100.33822 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems
- Microsoft / Windows Server 2025 (Server Core installation): ≥ 10.0.26100.0; < 10.0.26100.33822 (affected, custom). Source: CNA: microsoft; platforms: x64-based Systems

## Severity and prioritization

- CVSS 3.1: 5.9 (medium); CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H/E:U/RL:O/RC:C; source: CNA: microsoft

- CISA KEV: No listing in collected sources

- EPSS: Not available

- SSVC: exploitation none; automatable no; technical impact partial; source ADP: CISA-ADP

- Weaknesses: CWE-401

## Exploit evidence

No exploit evidence in collected sources. This is not proof of no exploitation.

## References

- https://msrc.microsoft.com/update-guide/vulnerability/CVE-2026-119972 (CNA: microsoft; vendor-advisory, patch)

## Provenance

- CNA: microsoft: https://www.cve.org/CVERecord?id=CVE-2026-119972; retrieved 2026-11-10; source updated 2026-11-10

Revision: e6e33c95973fdf3c6b7c055c6218282766847351383f8dc191808e906c15dae6

Canonical: https://y2.dev/cve/CVE-2026-119972

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